a9s PostgreSQL enables on-demand provisioning of VM-based, dedicated PostgreSQL servers and clusters. Developers can create instances of a PostgreSQL server or cluster using Apps Manager or the Cloud Foundry Command Line Interface (cf CLI), and bind these instances to an application. Depending on the chosen service plan, a service instance may be associated with a single, dedicated virtual machine, or a set of VMs consisting of multiple virtual machines comprising a cluster of PostgreSQL servers.
a9s PostgreSQL includes the following key features:
|On-Demand Service Instance Provisioning
|a9s PostgreSQL deploys PostgreSQL instances automatically. Developers can provision a single-VM PostgreSQL server or a multi-VM PostgreSQL Replica Set using a single command.
|Service Instance Isolation
|Each PostgreSQL server runs on a dedicated VM to ensure bad neighborhood protection in order to be aligned with enterprise security requirements.
a9s PostgreSQL uses Cloud Foundry security groups to prevent network connections being established by unauthorized applications.
|The Replication Manager for PostgreSQL ensures high availability.
The Consul-based internal DNS ensures that the connected application always connects to a working node.
The clustered data service plans are spread across several infrastructure availability zones, which enables very short failover times and a strong resilience of individual infrastructure hosts or even entire availability zones.
|a9s PostgreSQL contains a post-deploy smoke tests errand that runs a series of basic test against your installation to ensure that it is configured properly.
|Service Instance Capacity Upgrade
|Cloud Foundry Service Plan updates allow upgrades to the RAM, CPU and storage capacity for your MongoDB instances.
|Logging and Monitoring
|Each PostgreSQL service instance provides log messages and MongoDB-specific metrics to one or more
syslog/graphite endpoints. You can configure the
syslog/graphite endpoint to receive logging and monitoring information.
|This errand automatically updates the stemcell and all provisioned a9s PostgreSQL service instances to their lastest version.
|The Backup Manager does regular backup of your instances and offers endpoints to backup instantly and restore backups.
|CF Service Guard
|The CF Service Guard creates Cloud Foundry App Security Groups for your service instance VMs.
When the IP address of a service instance changes, the CF Service Guard updates the ASG.